Re: Best Programming language for Network programming (serious server application

Matthew Hicks wrote: ** and top-posted - fixed **

I need to build a real-time network (client-server) application,
where many clients will send data on a continual basis and the
server will process the data, dump into database and send response
back to the client. So the server needs to be a heavily multi-
threaded application with real-time database writes and with a
capability of real time response. I need to know which language
and platform are best suited to write my client and server
application? Client will be a GUI intensive complex application
which will receive huge amount of UDP packets and shall be
required to display the same on a real-time basis.

I m wondering of using java for my client application development
as it shall make my client platform independent as well as provide
good support for GUI development as well as network accessibility.
But i m not too sure abt the performance that java shall be able
to provide as it has to be a real time application.

Now for my server, I am confused between java and C/C++. I have
heard that writing networking applications is easier in Java and
even as a whole, writing and maintaining code in Java is much
easier. Also database interaction is a factor here. But
performance-wise i m extremely worried. Some googling told me that
Java is no longer slower than C++ but i m sceptical. They say that
JIT compilation (some dynamic compilation funda) makes java
actually faster than C++. Is it true or just a theory? I am not a
geek and has been using delphi sockets for so long. But there have
been serious issues in delphi sockets and I want to look for
something else. Can anybody please help. I am willing to go any
extra mile to do the coding in C/C++ but is it worth the effort.
Will the performance difference be significant?

I have tried creating a sample server Java app, which will spawn
one thread for each client socket connection. I tried connecting
5000 client sockets to this blocking server socket and got "Out of
Heap memory" error in Server! This was concerning as my server
application is expected to handle a much higher number of client
connections. Is it a Java's limitation or my ignorance of better
java uasabilty? Is there any other suggestion than sockets?

I know it was a very lengthy posting but any help shall be
extremely helpful as i m badly trying to battle it out in this
technological web. Thanks to anybody who cares to read this post.

First of all, before you start a fight between C++ and Java fans,
which one is faster is inconsequential to your application. The
reason is that Java is not well suited at all for real-time
applications. One reason, the garbage collector. In fact, for
truely real-time apps, your best option is C and assembly. Reading
your post, I think that you really don't understand what real-time
is especially as it concerns your system. Maybe some background
reading on the subject would be helpful. Once you do that reading,
you will probably come to the conclusion that what you want to
develop is a system that maintains soft real-time (bounded response
times) performance in the face of at most XXXXX clients (asynchronous
tasks) with YYYY resources available. This may mean that you need a
real-time operating system (RTOS), if you are pushing the limits of
your hardware.

By the way, you can increase the amount of memory that the Java VM
will have access to so your heap won't fill so quickly.

A good answer. But ...

Please do not delete attributions for material you quote.

Please do not top-post. Your answer belongs after (or intermixed
with) the quoted material to which you reply, after snipping all
irrelevant material. See the following links:

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